US2468866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil filter and cooler
Assignee: Individual
•
Filing: 1945-09-21
•
Granted: 1949-05-03
•
Expires: 1965-09-21
Abstract
No abstract record available.
Inventors
- 👤 William S Collier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:37
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D27/00; B01D27/02; B01D27/08; F; F01; F01M; F01M11/00; F01M11/03; F01M2011/031; F01M2011/033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1791046A
Cited
US1464822A
Cited
US1906984A
Cited
US2305654A
Cited
US2277737A
Cited
US2277738A
Cited
US2354645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |